merge heads

Doc/distutils/index.rst

@@ -20,7 +20,6 @@ very little overhead for build/release/install mechanics.
 
 .. toctree::
    :maxdepth: 2
-   :numbered:
 
    introduction.rst
    setupscript.rst

Doc/library/packaging.rst

@@ -23,7 +23,6 @@ Building blocks
 
 .. toctree::
    :maxdepth: 2
-   :numbered:
 
    packaging-misc
    packaging.version
@@ -42,7 +41,6 @@ The command machinery
 
 .. toctree::
    :maxdepth: 2
-   :numbered:
 
    packaging.dist
    packaging.command
@@ -55,7 +53,6 @@ Other utilities
 
 .. toctree::
    :maxdepth: 2
-   :numbered:
 
    packaging.util
    packaging.tests.pypi_server

Lib/test/test_concurrent_futures.py

@@ -623,7 +623,9 @@ class FutureTests(unittest.TestCase):
 
         self.assertTrue(isinstance(f1.exception(timeout=5), IOError))
 
+@test.support.reap_threads
 def test_main():
+    try:
         test.support.run_unittest(ProcessPoolExecutorTest,
                                   ThreadPoolExecutorTest,
                                   ProcessPoolWaitTests,
@@ -633,6 +635,8 @@ def test_main():
                                   FutureTests,
                                   ProcessPoolShutdownTest,
                                   ThreadPoolShutdownTest)
+    finally:
+        test.support.reap_children()
 
 if __name__ == "__main__":
     test_main()

Misc/NEWS

@@ -228,6 +228,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #11321: Fix a crash with multiple imports of the _pickle module when
+  embedding Python.  Patch by Andreas Stührk.
+
 - Issue #6755: Add get_wch() method to curses.window class. Patch by Iñigo
   Serna.
 

Modules/_pickle.c

@@ -6338,8 +6338,10 @@ PyInit__pickle(void)
     if (m == NULL)
         return NULL;
 
+    Py_INCREF(&Pickler_Type);
     if (PyModule_AddObject(m, "Pickler", (PyObject *)&Pickler_Type) < 0)
         return NULL;
+    Py_INCREF(&Unpickler_Type);
     if (PyModule_AddObject(m, "Unpickler", (PyObject *)&Unpickler_Type) < 0)
         return NULL;